Finding the Fourth Proportional to 5,185,737,673.42, 7,156,318,339.12 and 2,838,894,217.42
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Solution
The fourth proportional to 5,185,737,673.42, 7,156,318,339.12 and 2,838,894,217.42 is: 3,917,674,211.54
Step by Step Solution
- Step 1: Write the proportion equation
5,185,737,673.42 : 7,156,318,339.12 = 2,838,894,217.42 : x - Step 2: Convert to fraction form
5,185,737,673.42/7,156,318,339.12 = 2,838,894,217.42/x - Step 3: Cross multiply
5,185,737,673.42x = 7,156,318,339.12 × 2,838,894,217.42 - Step 4: Simplify right side
5,185,737,673.42x = 20,316,030,750,944,464,896 - Step 5: Solve for x
x = 20,316,030,750,944,464,896/5,185,737,673.42 - Step 6: Final answer
x = 3,917,674,211.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.